Life skills training for hatchery fish: Social learning and survival
Recent investigations of social-learning processes have clear relevance for hatchery practice in the rearing of some species of fish. Research findings show that many fish learn to recognize the stimulus features of food, predators and habitat. The behavior of these fish may then serve as a source f...
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Veröffentlicht in: | Fisheries research 1989, Vol.7 (4), p.343-352 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Recent investigations of social-learning processes have clear relevance for hatchery practice in the rearing of some species of fish. Research findings show that many fish learn to recognize the stimulus features of food, predators and habitat. The behavior of these fish may then serve as a source from which naïve conspecifics can acquire recognition of the same stimulus. Learned behavior can result from simple exposure of fish to conspecifics engaged in particular activities. Fish that observe a conspecific consume a novel food later show an increased tendency to eat that food themselves. Fish that observe conspecifics displaying alarm behavior in the presence of a novel chemosensory stimulus (pseudopredator) later themselves display alarm behavior to the chemosensory stimulus. Fish that visually observe predators preying on conspecifics, later show enhanced ability to evade such predators. These findings suggest that large scale training of food and predator recognition may be feasible, effective, and economically undertaken before hatchery fish are released to the wild. |
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ISSN: | 0165-7836 1872-6763 |
DOI: | 10.1016/0165-7836(89)90066-0 |